. >> steven tyler! ladies and gentlemen, miss jennifer lopez. rock and roll icon steven tyler and music movie superstar jennifer lopez say they're thrilled to join one of television's top shows. >> you know, it is being a part of something much bigger than yourself. >> i'm so excited to be here. i'm he so excited to work with all of you, to watch you grow and to watch the journey that we are about to take together. >> reporter: the celebrity judges join original and returning panel member randy jackson at the table. together, they're taking the competition for the next level. >> between the heart and passion and the street cred, this is going to be a richter scale event. >> i'm looking for the next michael jackson. i'm looking for -- we're looking like randy said for the best american idol ever. >> reporter: singers will be encouraged to sing inside their own genre, not having to spread their wings like they have in the past. there will be no celebrity guest judges this year. in inglewood, california, adam housley. >> interest with the no guest